title: Age characteristics of measles cases--United States, 1977-1980.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006470:Hemorrhage; D006801:Humans; D007223:Infant; D008457:Measles / Q000453:epidemiology*; D014481:United States